soil reinforcement geogrid Articles

Pullout and direct shear tests have been conducted to investigate the soil-reinforcement interaction behavior in pullout and direct shear mechanisms. An apparatus—discussed in this paper—has been developed that is capable of performing both pullout and direct shear tests. Displacement measurements to monitor dilatancy on the backfill soil during pullout tests are incorporated in the apparatus. ...

In order to overcome the limitations of the current standard small direct shear box in testing the shear strength of coarse granular backfill materials, a large direct shear apparatus (1000 by 1000 by 940 mm) was constructed at Carleton University and a series of direct shear tests were conducted with coarse granular soils. In addition, several direct shear tests on soils reinforced with geogrids ...

In order to ensure stability, Maccaferri India installs the MacRES Reinforced Soil (RS) wall system with concrete panel fascia and ParaWeb soil reinforcement into the Goa Industrial Construction site. Watson Pharma Pvt. Ltd. a global pharmaceutical company proposed to build a full fledged manufacturing unit at Verna, Goa. Verna Industrial Estate is located approximately 10 km north of the South ...

The pullout resistance of welded steel geogrid reinforcement embedded in poor-quality, cohesive-frictional backfill material such as weathered clay was investigated. Laboratory pullout tests were conducted on various reinforcement sizes, mesh geometry, and compaction conditions of the backfill material. Field pullout tests were also conducted to investigate the pullout resistance of ...

Design methods for reinforced soil structures under static loading conditions are relatively well established. Little research has been conducted on the behavior of embedded geosynthetics subjected to repeated loadings. Such research is needed to improve the design of reinforced soil structures subjected to traffic and seismic loadings. The study reported here is related to the long-term ...

Challenge Sea-Tac International Airport in Seattle, WA has grown to become the 18th busiest airport in the country and the need for convenient parking is a growing concern. To help provide needed parking, one of the area’s leading parking services, MasterPark Inc., sought to turn unusable land near the airport into a valuable $20-per-night parking lot. Five retaining walls up to 33 ...

Construction in soft, weak ground requires treating large areas to a greater depth to ensure the safety of the superstructure. Usually, deep foundation techniques or ground improvement techniques are applied. However, this usually proves to be very costly. Past research has demonstrated that geocell reinforcement increases the load carrying capacity of the foundation bed. It is also a ...

Background The South Carolina Department of Transportation (SCDOT) needed to provide a right-of-way for an access road adjacent to a CSX Railroad line. The proposed Clemson Road Bridge overpass was a challenging project and SCDOT had three choices: Option 1: Construct a 1H:1V Reinforced Soil Slope (RSS) at the northern bridge abutment. Option 2: Lengthen the northern ...

The Canadian National Railway (CN Rail) wanted to build an additional 6-track extension at the Transcona yard in Winnipeg, Manitoba. Heavy rail cars were expected to pass over this extension area and CN Rail was looking for an economical, fast, environmentally friendly and technically sound solution for their track extension. The site had swampy conditions with wet and soft clay soils. In fact, ...

Opened in 1987, the municipal landfill Ämmässuo in Finland extends over 50 ha, making it one of the largest in all of Scandinavia. Two test fields were set up to find a suitable solution for the surface sealing system and future slope reinforcement The structure of these fields consists of a mineral gas-drain layer, a mineral sealing layer, a geosynthetic clay liner, a protection ...

Background Available property for development within the Interstate 285 perimeter in Atlanta is becoming increasingly scarce. A northwest portion of metropolitan Atlanta was becoming progressively more congested and sites previously considered too expensive or difficult to build upon were being targeted for development. The owners wanted to develop this site for a motel/suites ...

Stable RiStWag -construction guidelines for roadways in water preservation areas Included in the A6 federal motorway construction project lot Mannheim – Heilbronn/Weinsberg, AS Bad Rappenau – AS Neckarsulm is the widening of km 631+640 and km 641+060 to six lanes. This section is runs through a water preservation zone, type IIIa, protected under RiStWag. Because of this, a ...

Challenge – Reducing Track Maintenance on Expansive Clay Areas of expansive weak clay subgrades invariably change as a result of seasonal changes in moisture content. For rail track in these areas, the resultant heaving and shrinking causes severe degradation of rail alignment, requiring extensive maintenance. One such area is northern Israel, where the Israel Railway Authority ...

The logging yard at Canfor’s Fort St. John mill is subject to the heaviest loading operations in the worst soil conditions. Saturated peat with a CBR Cat 988H loaders weighing more than 43,000 kg, heavy hauling trucks, and other mechanical equipment created heavy rutting in the soft soil. The logs, stockpiled in huge, 6-metre high stacks, suffered from large settlement, which further ...

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